http://repository.iitr.ac.in/handle/123456789/14712| Title: | Esterified superhydrophobic nanofibrillated cellulose based aerogel for oil spill treatment |
| Authors: | Chhajed M. Yadav C. Agrawal A.K. Maji, Pradip K. |
| Published in: | Carbohydrate Polymers |
| Abstract: | The present work aims towards the structuring of a physically cross-linked aerogels based on nanofibrillated cellulose (NFC) and polyvinyl alcohol (PVA), i.e., NFC/PVA aerogels for oil spillage cleanup. Highly porous (98%) NFC/PVA aerogels having both meso-micro pores were achieved by freeze drying technique. To impart super-hydrophobicity to the composite aerogel, a simple dip coating process was adopted using stearic acid chloride (SAC) solution. The SAC conjugated aerogels combined both superhydrophobic and oleophilic characteristics showed a contact angle of ∼159° and ∼0° with water and oil respectively. FESEM and X-ray microtomography images revealed a self-assembled 3D porous cellular structure of the aerogels. The prepared aerogels were found to be very efficient in separating a series of oil/water mixtures and various organic solvents with excellent selectivity and recyclability. Absorption capacity of the aerogels was at least 35 times higher than their dry weight. Simple mechanical squeezing method was adopted for repetitive uses. © 2019 Elsevier Ltd |
| Citation: | Carbohydrate Polymers (2019), 226(): - |
| URI: | https://doi.org/10.1016/j.carbpol.2019.115286 http://repository.iitr.ac.in/handle/123456789/14712 |
| Issue Date: | 2019 |
| Publisher: | Elsevier Ltd |
| Keywords: | Aerogel Nanofibrillated cellulose (NFC) Oil spill cleaning Polyvinyl alcohol (PVA) |
| ISSN: | 1448617 |
| Author Scopus IDs: | 57210960710 57193354539 35615226500 56249287900 |
| Author Affiliations: | Chhajed, M., Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur, U.P. 247001, India Yadav, C., Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur, U.P. 247001, India Agrawal, A.K., Technical Physics Division, Bhabha Atomic Research Centre, Mumbai, India Maji, P.K., Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur, U.P. 247001, India |
| Funding Details: | This research project has been supported by the Science and Engineering Research Board, Government of India , under the Early Career Research Award (Grant No.: ECR/2016/000621/CS ). The author, Ms. Monika Chhajed gratefully acknowledge the Science and Engineering Research Board, Government of India, India for fellowship support. |
| Corresponding Author: | Maji, P.K.; Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur CampusIndia; email: pradip.fpt@iitr.ac.in |
| Appears in Collections: | Journal Publications [PE] |
Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.